APA (7th ed.) Citation

Selkregg, E. R., & Siegler, E. H. (1928). Life history of the codling moth in Delaware. U.S. Department of Agriculture.

Chicago Style (17th ed.) Citation

Selkregg, E. R., and E. H. Siegler. Life History of the Codling Moth in Delaware. Washington: U.S. Department of Agriculture, 1928.

MLA (9th ed.) Citation

Selkregg, E. R., and E. H. Siegler. Life History of the Codling Moth in Delaware. U.S. Department of Agriculture, 1928.